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Ironbark

Ironbark is a common name of a number of species in three taxonomic groups within the genus Eucalyptus that have dark, deeply furrowed bark.[1]

E. crebra bark

Instead of being shed annually as in many of the other species of Eucalyptus, the dead bark accumulates on the trees, forming the fissures. It becomes rough after drying out and becomes impregnated with kino (red gum), a dark red tree sap exuded by the tree.[2] The tree is so named for the apparent resemblance of its bark to iron slag. The bark is resistant to fire and heat and protects the living tissue within the trunk and branches from fire. In cases of extreme fire, where leaves and shoots are removed, the protective bark aids in protecting epicormic buds which allow the tree to reshoot.[3]

Being a very dense, hard wood, a length of ironbark is often used as a bug shoe on the bottom of a ship's skeg to protect it from shipworms.[4] Ironbark was widely used in the piles of 19th and early 20th century bridges and wharves in New Zealand.[5] It was widely used for railway sleepers in eastern Australia in the 19th and 20th centuries due to its durability; while other timber sleepers had to be replaced every 7-12 years, ironbark could last 30 years.[6][7]

Examples of ironbark species edit

See also edit

References edit

  1. ^ Ian Brooker, "Botany of the Eucalypts" in J.J.W. Coppen, Eucalyptus, 3-35, Boca Raton, Florida: CRC Press, 2002 ISBN 0-415-27879-1, p. 31
  2. ^ CSIRO Forest Products Newsletter 1946
  3. ^ J.B. Reid & B.M. Potts, "Eucalypt Biology" in Reid et al. (eds.), Vegetation of Tasmania, Australian Government, 2005, pp. 198-223
  4. ^ "AFSC Historical Corner: Scoter, the Agency's Bristol Bay Boat". NOAA. Retrieved 6 April 2018.
  5. ^ "Report 05-116 collapse of Bridge 256 over Nuhaka River Palmerston North-Gisborne Line" (PDF). Transport Accident Investigation Commission. 6 May 2005.
  6. ^ Report on the Construction and Progress of the Railways of New South Wales from 1866-1871, Inclusive. New South Wales. Dept. of Railways and Tramways. 1876. p. 52.
  7. ^ Morris Lake (2019). Australian Forest Woods: Characteristics, Uses and Identification. CSIRO. p. 96. ISBN 9781486307791.

External links edit


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This article is about species of trees in the genus Eucalyptus For other uses see Ironbark disambiguation Ironbark is a common name of a number of species in three taxonomic groups within the genus Eucalyptus that have dark deeply furrowed bark 1 E crebra bark Instead of being shed annually as in many of the other species of Eucalyptus the dead bark accumulates on the trees forming the fissures It becomes rough after drying out and becomes impregnated with kino red gum a dark red tree sap exuded by the tree 2 The tree is so named for the apparent resemblance of its bark to iron slag The bark is resistant to fire and heat and protects the living tissue within the trunk and branches from fire In cases of extreme fire where leaves and shoots are removed the protective bark aids in protecting epicormic buds which allow the tree to reshoot 3 Being a very dense hard wood a length of ironbark is often used as a bug shoe on the bottom of a ship s skeg to protect it from shipworms 4 Ironbark was widely used in the piles of 19th and early 20th century bridges and wharves in New Zealand 5 It was widely used for railway sleepers in eastern Australia in the 19th and 20th centuries due to its durability while other timber sleepers had to be replaced every 7 12 years ironbark could last 30 years 6 7 Contents 1 Examples of ironbark species 2 See also 3 References 4 External linksExamples of ironbark species editEucalyptus ancophila L A S Johnston amp K D Hill Eucalyptus atrata L A S Johnston amp K D Hill Herberton ironbark blue leaved ironbark Eucalyptus beaniana L A S Johnson amp K D Hill Bean s ironbark Eucalyptus caleyi Maiden Caley s ironbark drooping ironbark Eucalyptus corynodes A R Bean amp Brooker Eucalyptus crebra F Muell narrow leaved ironbark or narrow leaved red ironbark Eucalyptus cullenii Cambage Cullen s ironbark Eucalyptus decolor A R Bean amp Brooker Eucalyptus decorticans F M Bailey Maiden gum topped ironbark Eucalyptus dura L A S Johnson amp K D Hill Eucalyptus exilipes Brooker amp A R Bean fine leaved ironbark Eucalyptus farinosa K D Hill Eucalyptus fibrosa F Muell broad leaved red ironbark blue leaved ironbark Eucalyptus fusiformis Boland amp Kleinig grey ironbark Eucalyptus granitica L A S Johnson amp K D Hill granite ironbark Eucalyptus indurata Brooker amp Hopper ironbark Eucalyptus jensenii Maiden Wandi ironbark Eucalyptus melanoleuca S T Blake Yarraman ironbark or nanango ironbark Eucalyptus melanophloia F Muell silver leaved ironbark Eucalyptus ophitica L A S Johnson amp K D Hill serpentine ironbark Eucalyptus panda S T Blake tumbledown ironbark Yetman ironbark Eucalyptus paniculata Sm grey ironbark Eucalyptus paedoglauca L A S Johnson amp Blaxell Mount Stuart ironbark Eucalyptus placita L A S Johnson amp K D Hill grey ironbark Eucalyptus quadricostata Brooker square fruited ironbark Eucalyptus rhombica A R Bean amp Brooker Eucalyptus scopulorum K D Hill Eucalyptus shirleyi Maiden Shirleys s silver leaved ironbark Eucalyptus sicilifolia L A S Johnson amp K D Hill Eucalyptus siderophloia Benth northern grey ironbark Eucalyptus sideroxylon A Cunn ex Woolls mugga ironbark Eucalyptus staigeriana F Muell ex Bailey lemon scented ironbark Eucalyptus suffulgens L A S Johnson amp K D Hill Eucalyptus taurina A R Bean amp Brooker Helidon ironbark Eucalyptus tricarpa L A S Johnson L A S Johnson amp K D Hill red ironbark Eucalyptus virens Brooker amp A R Bean shiny leaved ironbark Eucalyptus whitei Maiden amp Blakely White s ironbarkSee also editIronwoodReferences edit Ian Brooker Botany of the Eucalypts in J J W Coppen Eucalyptus 3 35 Boca Raton Florida CRC Press 2002 ISBN 0 415 27879 1 p 31 CSIRO Forest Products Newsletter 1946 J B Reid amp B M Potts Eucalypt Biology in Reid et al eds Vegetation of Tasmania Australian Government 2005 pp 198 223 AFSC Historical Corner Scoter the Agency s Bristol Bay Boat NOAA Retrieved 6 April 2018 Report 05 116 collapse of Bridge 256 over Nuhaka River Palmerston North Gisborne Line PDF Transport Accident Investigation Commission 6 May 2005 Report on the Construction and Progress of the Railways of New South Wales from 1866 1871 Inclusive New South Wales Dept of Railways and Tramways 1876 p 52 Morris Lake 2019 Australian Forest Woods Characteristics Uses and Identification CSIRO p 96 ISBN 9781486307791 External links edit Ironbark Tree New International Encyclopedia 1905 nbsp This page is an index of articles on plant species or higher taxonomic groups with the same common name vernacular name If an internal link led you here you may wish to edit the linking article so that it links directly to the intended article This rosid tree article is a stub You can help Wikipedia by expanding it vte nbsp This Eucalyptus article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Ironbark amp oldid 1177285192, wikipedia, wiki, book, books, library,

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